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[108.89.202.162]) by smtp.gmail.com with ESMTPSA id 00721157ae682-806f10837bfsm59866927b3.45.2026.06.27.12.06.13 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sat, 27 Jun 2026 12:06:14 -0700 (PDT) From: Jason Pettit To: Konrad Dybcio Cc: Jason Pettit , Bjorn Andersson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Akhil P Oommen , Mahadevan P , Sibi Sankar , Jingyi Wang , Ananthu C V Subject: Re: [PATCH v2 2/3] arm64: dts: qcom: Add HP EliteBook X G2q 14 AI Date: Sat, 27 Jun 2026 12:06:12 -0700 Message-ID: <20260627190612.27271-1-jason.pettit@oss.qualcomm.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: References: <20260625-glymur-send-v2-0-00905324ffbf@oss.qualcomm.com> <20260625-glymur-send-v2-2-00905324ffbf@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI3MDE2NyBTYWx0ZWRfX9LWE2yYEx4vR Cp2TnpPty40Mpj/Oy97VAnoozWxUZO8Utn2lDPmF4EF0ZcyWhjuOhmd8FRLJHTor44aGSGM67ZY H1pp+n3Hzv0hd89nDmR3iP7fymA93A4CAu4hq4n6XktHJSmHXOYY1W1ZtSqUs72cmvpl4d52Lf+ 5qWtE208fnETIHV1oTUID5aLUipmYF71Ue7dMmLv0WZlJUVdD2lOOWANbYhgWJ9llwiQKTV23Wv p8iksCmXqy8MhbYRBAgrawB1zl27rhL+RHsVV+fngPxOc7wxa10CpXZJqu4HGxmiv3Yn4xlRWfX 5zHrx8MOu2QUl5ZisBnAZC3UYDmKl5GidEBH81Rh6JpKdN+oaI1jPNn18G810paV81G2Q/pmzSS 6Xq+cq/kbhUkqzY0cnYP9CFIOuxS1XlpW+vOC7X+W3VulqVnjq/pJ+7/oNlKbEEDvLlIaEPDG5C +DNqjBBjUz0VFZlu9rQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwNjI3MDE2NyBTYWx0ZWRfX8TufP3t9t3Mq fk/y1m06van27ymmTbKkK4yx3Rc2M1en0bP7MIUQ6uPdlBRPVmNY/Rym3cnU1X9X8f+dXR6V+13 EW9JvqfQBPo8pmgrcxbKBggrrBga4DU= X-Proofpoint-GUID: k_MrRNgHDpa0ElAWbtuOOMVSpMt0cDSc X-Proofpoint-ORIG-GUID: k_MrRNgHDpa0ElAWbtuOOMVSpMt0cDSc X-Authority-Analysis: v=2.4 cv=Fe4HAp+6 c=1 sm=1 tr=0 ts=6a401f28 cx=c_pps a=g1v0Z557R90hA0UpD/5Yag==:117 a=AgdIAmbgiPN5lz+IpyuXaA==:17 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=ClHHCGylXNJOVoNdELgA:9 a=O8hF6Hzn-FEA:10 a=MFSWADHSvvjO3QEy5MdX:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-27_03,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 clxscore=1015 priorityscore=1501 impostorscore=0 adultscore=0 lowpriorityscore=0 phishscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606270167 On Fri, 26 Jun 2026 13:27:42 +0200, Konrad Dybcio wrote: > If you remove these two nodes, the QMPPHY-as-DP-only should still > function (it's the USB3 block that depends on the QMPPHY, not the > other way around) Apologies for the duplicate. My earlier copy of this reply went out with a misconfigured sender identity from a local mail setup issue. Resending it cleanly. I boot-tested this. With &usb_2 and &usb_2_hsphy removed, dmesg still shows the af64000 DP controller binding and /sys/class/drm shows the HDMI-A-1 connector as connected, but nothing is displayed on the attached monitor. With both nodes present, the monitor shows an image. So removing them stops HDMI from working on this board. The comment in v3 will be updated to read: /* usb_2's combo PHY drives the HDMI bridge over DP; keep the dwc3 enabled. */ Thanks, Jason